package IO;

import java.io.*;

public class CopyDemo3 {
    public static void main(String[] args) throws IOException {
        FileInputStream fis =new FileInputStream("./images/KUAN.jpg");
        BufferedInputStream bis = new BufferedInputStream(fis);

        FileOutputStream fos =new FileOutputStream("./images/KUAN4.jpg");
        BufferedOutputStream bos = new BufferedOutputStream(fos);

        int d ;
        long start =System.currentTimeMillis();
        while ((d= bis.read())!=-1){
            bos.write(d);
        }
        long end =System.currentTimeMillis();
        System.out.println("赋值完毕！耗时"+(end-start)+"ms");
        bos.close();
        bis.close();
    }
}
